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uysha [10]
3 years ago
8

When spray is applied to a car, the paint has a negative charge and the surface of the car has a positive charge. Some processes

use a negatively charged paint and a grounded object. Explain why this also works.
Physics
1 answer:
RUDIKE [14]3 years ago
4 0

Answer:

Based on the properties electrically charged particles, we have that unlike charges attract and like charges repel each other. In order for proper application of an electrostatically negatively charged paint to be properly applied on the metal body surface of a vehicle, require that for attraction, the surface of the vehicle should be grounded and positively charged so as to effectively attract the negatively charged paint particles as it exits the nozzle, to form a strong attachment with the positively charged surface of the vehicle

Explanation:

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the answer is

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3 years ago
A bell rings at a frequency of 75hz on a warm 25 degree evening. calculate the...
allochka39001 [22]

Answer:

Explanation:

We need 2 different equations for this problem: first the velocity of sound equation, then the frequency of the sound equation.

The velocity of sound is found in:

v = 331.5 + .606T

We need to find that first in order to fill it into the frequency equation which is

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v = 331.5 + .606(25) and

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v = 347 m/s

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75=\frac{347}{\lambda} and

\lambda=\frac{347}{75} so

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7 0
3 years ago
A 2.35-kg rock is released from rest at a height of 21.4 m. Ignore air resistance and determine (a) the kinetic energy at 21.4 m
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Explanation:

Given that,

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e-lub [12.9K]

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3 years ago
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Answer:

The vector sum of all forces acting on it is zero, its at equilibrium.

Explanation:

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